If a regular solid has a mass of 200 grams and a volume of 50 cm³, what is its density (Density of materials) ? P43-035 Density of materials checkpoint

The correct answer is 4 g/cm³ ? P43-035 state-change particle arrangement.

Method lens: First identify the measured quantity, then match the equation or particle idea to the command word. This question asks: If a regular solid has a mass of 200 grams and a volume of 50 cm³, what is its density (Density of materials) ?. The correct response is 4 g/cm³ ? P43-035 state-change particle arrangement, because the particle model explains the observable property using particles. In Density of materials, the marking point should connect directly to required practical activity 5: use appropriate apparatus to make and record measurements needed to determine densities of regular solid objects. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Changes of state and the particle model, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 56 is distinct because it uses this exact question context and the method lens rather than a generic particle-model sentence.